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28 lines
944 B
Go
28 lines
944 B
Go
/* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright (C) 2017-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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* Copyright (C) 2017-2018 Mathias N. Hall-Andersen <mathias@hall-andersen.dk>.
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*/
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package tun
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import "os"
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type TUNEvent int
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const (
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TUNEventUp = 1 << iota
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TUNEventDown
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TUNEventMTUUpdate
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)
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type TUNDevice interface {
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File() *os.File // returns the file descriptor of the device
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Read([]byte, int) (int, error) // read a packet from the device (without any additional headers)
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Write([]byte, int) (int, error) // writes a packet to the device (without any additional headers)
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MTU() (int, error) // returns the MTU of the device
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Name() (string, error) // fetches and returns the current name
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Events() chan TUNEvent // returns a constant channel of events related to the device
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Close() error // stops the device and closes the event channel
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}
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